Run results for: innerHTML vs append

Run details:

User agent: Mozilla/5.0 (Android 15; Mobile; rv:144.0) Gecko/144.0 Firefox/144.0

Browser: Firefox Mobile 144

Operating system: Android

Device Platform: Mobile

Date tested: 7 months ago

Test name	Executions per second
append	157.0 Ops/sec
innerHTML	532.6 Ops/sec

HTML Preparation code:

<div id="test"></div>

Tests:

append
var newElement = document.createElement("div"); newElement.id = "testing" for (i = 0; i < 1000; i++) { var newElementPart = document.createElement("div"); newElementPart.classList.add("testClass"); newElement.append(newElementPart); } document.getElementById("test").append(newElement);
innerHTML
html = "<div id='testing'>" for (i = 0; i < 1000; i++) { html += "<div class='testClass'></div>"; } html += "</div>"; document.getElementById("test").innerHTML = html;